bigger trailing plug hole
#1
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bigger trailing plug hole
Doee any one know why would this be done?
A friend had his engine rebuild by a well known rotary engine builder, and he did a streetport and the guy also made the trailling hole bigger. and i was wondering what are the benefits of doing this.
A friend had his engine rebuild by a well known rotary engine builder, and he did a streetport and the guy also made the trailling hole bigger. and i was wondering what are the benefits of doing this.
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Trailing plug holes have to be small to minimize gas leakage from chamber with combustion to chamber which just finishes intake cycle. It hurts both ways, loss of combustion pressure is obvious, but also, hot gases displace portion of fresh intake charge. Same goes for far trailing system on R26B - paper exactly states, that there was noticeable BSFC improvement due to better combustion with 3rd plug, but power improvement wasnīt of such magnitude due to gas leakage minimizing VE.
So to answer your question, I donīt see how making trailing hole bigger would be benefical to anything. If the builder is reputable, he certainly should explain why he did such "modification". Otherwise it would seem that he is experimenting on customers engine
So to answer your question, I donīt see how making trailing hole bigger would be benefical to anything. If the builder is reputable, he certainly should explain why he did such "modification". Otherwise it would seem that he is experimenting on customers engine
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immanuel__7
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